foam core wing repair - RCCanada - Canada Radio Controlled Hobby Forum
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Old 01-19-2003, 05:43 PM   #1
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foam core wing repair

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Anyone ever repair a wood over foam core wing. The break starts about a half inch behind the LE and runs the legnth of the wing on both sides and has separated from the foam. It only looks like about 3" of the surface is affected.(It's not a very good description). It looks like someone took a knife and ran it along the full legnth of the wing and then tried to peel the wood back. If I can borrow a camera I'll take a pic and post it. Just wondering what the procedure would be to fix it. Do I strip the full wing or can I just re-glue it. What kind of adheasive do I need to repair it. I Found a glue at the hardware store that will stick anything to anything (says so on the bottle )and turns to foam when it dries. Will this do?? Thanx folks.
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Old 01-19-2003, 05:49 PM   #2
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That sounds like Polyurethane glue - which would be my choice also. If it were me, I would try lifting the sheeting as best you can around the repair, spraying a light mist of water in there and pump some poly glue in there as well. Then tape over it to hold it down and see what happens!

What was the wing sheeted with in the first place?

If it is a bad enough break, you can router out a section, put in a reinforcing spar of basswood or ply on edge and then do the repair, maybe using some epoxy and micro balloons to fill the gap.

I fixed one wing this summer i crashed into the trees (foam sheeted with obechi) with some west systems epoxy, it is thin enought to get into a small area.

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Old 01-19-2003, 06:04 PM   #3
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foam core wing repair

hey that was quick. Think you're right about the polyurathane glue. It dries like it. It's LePage Universal Adhesive and man does it stick. The wing looks like it's covered in 1/16 ply(don't have it here yet). I was going to pick up the plane(P-40 mustang,40 size) but I wanted to see if it was worth repairing. The fuse needs a little repair work but nothing too major. It's a pretty clean break and the foam looks in good shape. I'll try to re-glue it and see what happens. What have I got to loose(crank,carb,radio,pride...etc . Thanx for your help.
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